CN105071488B - A kind of charging method and device of the terminal with data exchanging function - Google Patents
A kind of charging method and device of the terminal with data exchanging function Download PDFInfo
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- CN105071488B CN105071488B CN201510532478.3A CN201510532478A CN105071488B CN 105071488 B CN105071488 B CN 105071488B CN 201510532478 A CN201510532478 A CN 201510532478A CN 105071488 B CN105071488 B CN 105071488B
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- terminal
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- usb interface
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The embodiment of the invention discloses a kind of charging method and device of the terminal with data exchanging function, this method includes：Detect whether the terminal is in off-mode；When detecting that the terminal is in off-mode, close the data exchange access module of the USB interface of the terminal and switch to execution equipment charge access module.Whether detection terminal is in Rule of judgment of the off-mode as switching terminal access module by the present invention, not only realize to the switching of the access module of the USB interface of terminal, the problem of terminal can not charge caused by also solving the identified pins short circuit of the USB interface of terminal in the prior art.
Description
Technical field
The present invention relates to charging technique, more particularly to a kind of charging method and dress of the terminal with data exchanging function
Put.
Background technology
The electric terminal equipments such as current increasing mobile phone possess data exchange (On-The-Go, OTG) function, have
After the terminal of OTG functions is connected with OTG equipment, the communication between equipment can be carried out, the terminal and external power supply with OTG functions
After connection, terminal charge can be carried out by external power supply.
By taking mobile phone terminal as an example, the USB (Universal of the mobile phone provided as shown in Figure 1 for prior art
Serial Bus, USB) interface schematic diagram, there are the USB interface grounding pin GND, identified pins ID, positive voltage data to draw
Pin D+, negative voltage data pin D- and power pins VBUS.Detection of the mobile phone to OTG equipment is drawn by the mark of USB interface
Pin (ID) carries out OTG identifications, and detection of the mobile phone to external power supply is identified by the power pins (VBUS) of USB interface,
Therefore mobile phone can accurately identify external OTG equipment and external power supply by USB interface.When the USB of OTG equipment access mobile phone connects
During mouth, the ID pins of mobile phone can be connected with the chip of OTG equipment, realize the communication with external OTG equipment.The USB interface of terminal
When being communicated with external OTG equipment, terminal is in OTG access modules；Or the USB interface of terminal is connected with external power supply
During charging, terminal is in equipment charge access module.
The USB interface of most of terminals is directly exposed in air, and external equipment frequently inserts or pull out USB
Interface, therefore USB interface is highly susceptible to corrode or is lost and causes micro-short circuit.
Specifically, by taking mobile phone as an example, the ID pins of mobile phone USB interface are easily corroded to cause micro-short circuit, and now ID draws
Pin and the metal of surrounding (such as GND pin) short circuit.ID pin earth impedance is normally 1.5M, the OTG of ID pins identification
Between 0~180K Ω, and after GND pin and ID pin short circuits, micro- short resistance of ID pins exists the resistance range of equipment
Between 0.1K Ω -10K Ω, therefore the short circuit of ID pins can be identified as the access of OTG equipment by cell phone system.When cell phone system is known
Not Wei the access of OTG equipment when, cell phone system can export 5V power supplys by VBUS pins and carry out OTG detections, i.e., in OTG access modules
Lower detection, identification OTG equipment.If current time external power supply accesses mobile phone, because cell phone system is in OTG access modules, then
Mobile phone can not realize charge function.When the electricity of mobile phone is deficient extremely to shut down, because ID pin short circuits cause mobile phone to remain in
OTG access modules, even if then accessing external power supply, mobile phone still can not realize charging.
Most current electric terminal equipment is internal battery, and ID pin short circuits cause terminal even if in the power-offstate
Charging can not be realized, the normal use of user is influenceed and brings inconvenience to user.
The content of the invention
The present invention provides a kind of charging method and device of the terminal with data exchanging function, to solve in the prior art
Terminal USB interface short circuit leads to not the problem of charging.
In a first aspect, the embodiments of the invention provide a kind of charging method of the terminal with data exchanging function, including：
Detect whether the terminal is in off-mode；
When detecting that the terminal is in off-mode, the data exchange for closing the USB interface of the terminal accesses mould
Formula simultaneously switches to execution equipment charge access module.
Second aspect, the embodiment of the present invention additionally provide a kind of charging device of the terminal with data exchanging function, its
It is characterised by, including：
SOT state of termination detection module, for detecting whether the terminal is in off-mode；
Access module handover module, for when detecting that the terminal is in off-mode, closing the USB of the terminal
The data exchange access module of interface simultaneously switches to execution equipment charge access module.
The charging method and device of a kind of terminal with data exchanging function provided by the invention, it is by detection terminal
No place's off-mode, when detecting that terminal is in off-mode, the data exchange for the USB interface closed a terminal is controlled to access mould
Formula, and control to switch to and perform equipment charge access module, to control terminal to be charged.Whether the present invention locates detection terminal
In Rule of judgment of the off-mode as switching terminal access module, the access module to the USB interface of terminal is not only realized
Switching, the problem of terminal can not charge caused by also solving the identified pins short circuit of the USB interface of terminal in the prior art.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to do one and simply introduce, it should be apparent that, drawings in the following description are this hairs
Some bright embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram for the mobile phone USB interface that prior art provides；
Fig. 2 is that a kind of flow of the charging method for terminal with data exchanging function that the embodiment of the present invention one provides is shown
It is intended to；
Fig. 3 is that a kind of flow of the charging method for terminal with data exchanging function that the embodiment of the present invention two provides is shown
It is intended to；
Fig. 4 is that a kind of structure of the charging device for terminal with data exchanging function that the embodiment of the present invention three provides is shown
It is intended to.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, hereinafter with reference to attached in the embodiment of the present invention
Figure, technical scheme is clearly and completely described by embodiment, it is clear that described embodiment is the present invention one
Section Example, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out under the premise of creative work the every other embodiment obtained, belong to the scope of protection of the invention.
From prior art, when the USB interface short circuit of the terminal with OTG functions, no matter the USB interface of terminal has
Inserted without external OTG equipment, the detection that terminal is in OTG equipment all the time under off-mode and open state is data exchange
(OTG) access module, now terminal can not realize charging.
In practical operation, the terminal with OTG functions is typically all that the OTG carried out under open state communicates, terminal
Communicated during in off-mode without OTG.So the side of the invention by closing its OTG access module in terminal closedown
Method, ensure that in the case where ID pins fail charging can be realized, reduce the inconvenience of user.
Embodiment one
Fig. 2 is a kind of flow signal for terminal charging method with data exchanging function that the embodiment of the present invention one provides
Figure.The technical scheme of the embodiment is applied to the terminal with OTG functions, according to the state of the start of terminal or shutdown, control
Perform data exchange access module or perform the situation of equipment charge access module.Terminal can be any with OTG functions
Electronic equipment, typical such as mobile phone, tablet personal computer.This method can be held by the charging device of the terminal with OTG functions
OK, the device can be realized by the way of software and/or hardware, and configuration performs in the terminal.What the present embodiment provided has
The charging method of the terminal of data exchanging function specifically includes：
Whether S110, the detection terminal are in off-mode.
As described above, the USB interface of terminal has grounding pin GND, identified pins ID, positive voltage data pin D+, negative
Voltage data pin D- and power pins VBUS.Terminal needs to judge whether to be in off-mode, to judge to enter corresponding number
According to switched access pattern or equipment charge access module, and complete corresponding operation.
Whether this step is in off-mode by detection terminal, as force terminal enter charged state judgement according to
According to making terminal be in equipment charge access module in the power-offstate.
S120, when detecting that the terminal is in off-mode, close the terminal USB interface data exchange visit
Ask pattern and switch to and perform equipment charge access module.
As described above, when detecting that terminal is in off-mode, even if showing the USB interface access OTG equipment of terminal
Also OTG operations can not be performed, now force to control the data exchange access module for USB interface of closing a terminal, and control terminal
USB interface, which switches to, performs equipment charge access module.So if USB interface access has power-supply device, then terminal can be carried out
Charging.
It should be noted that being provided with data exchange identification circuit in terminal, the data exchange identification circuit is used to perform
Detection, identification and access to external OTG equipment, i.e. data exchange identification circuit perform data exchange access module.Therefore work as
When detecting that terminal is in off-mode, the data exchange access module for controlling the USB interface closed a terminal is that control is closed
Data exchange identification circuit, data exchange identification circuit is set to stop access detection, identification and access to OTG equipment.
In this step, no matter USB interface is short-circuit or normal, as long as detecting that terminal is in off-mode, that is, forces eventually
End switches to equipment charge access module, so that when USB interface has power-supply device access, terminal can be charged.
Whether detection terminal is in Rule of judgment of the off-mode as switching terminal access module by the present embodiment, not only
The access module switching to the USB interface of terminal is realized, also solves the identified pins of the USB interface of terminal in the prior art
The problem of terminal caused by short circuit even if can not also charge in the power-offstate.
Embodiment two
Fig. 3 is a kind of flow signal for terminal charging method with data exchanging function that the embodiment of the present invention two provides
Figure.This method can be performed by the charging device of the terminal with OTG functions, and the device can use software and/or hardware
Mode realize, configuration perform in the terminal.The charging method tool for the terminal with data exchanging function that the present embodiment provides
Body includes：
Whether S210, detection terminal send electromagnetic wave
When terminal is in start running status, terminal can send electromagnetic signal and be communicated or searched for neighbouring net
Network, therefore electromagnetic wave whether can be sent by detection terminal to judge terminal whether in start running status.
When detecting that terminal sends electromagnetic wave, judge that terminal is in open state, the USB interface of corresponding terminal performs
Data exchange access module.When detecting that terminal does not send electromagnetic wave, judge that terminal is in off-mode, corresponding control is closed
Close the data exchange access module of USB interface and force terminal to switch to and perform equipment charge access module, to be charged.
In this step, the basis for estimation of off-mode whether is in using whether terminal sends electromagnetic wave as detection terminal.
S220, when detecting that the terminal is in off-mode, the data exchange of the USB interface closed a terminal accesses mould
Formula simultaneously switches to execution equipment charge access module.
When detecting that terminal is in off-mode, if present terminal is in equipment charge access module, control
Terminal continues executing with equipment charge access module.When detecting that terminal is in off-mode, if present terminal is in data friendship
Change access module, then the data exchange access module for the USB interface closed a terminal, and control terminal to switch to execution equipment charge
Access module.
Alternatively, the specific implementation procedure of the data exchange access module for the USB interface closed a terminal can be：Disconnect and passing
The enable signal that the data in terminal exchanges identification circuit is transported to, to close the data exchange access module.
Terminal control USB interface is in data exchange access module particular by inputing to data exchange identification circuit one
Individual enable signal, data exchange identification circuit is set to be in data exchange mode.Visited when terminal control USB interface is in equipment charge
When asking pattern, terminal need to control closing data exchange identification circuit data exchange identification circuit is no longer on data exchange access
Pattern.Therefore terminal can be transmitted to the enable signal of data exchange identification circuit by disconnecting, to close data exchange identification electricity
Road, corresponding control close data exchange access module.
S230, under equipment charge access module, whether the voltage for detecting the power pins of the USB interface of the terminal big
In or equal to charging voltage threshold value.
When the USB interface of terminal switches to equipment charge access module, USB interface needs to be confirmed whether have power-supply device to connect
Enter, to carry out equipment charge immediately when there is power-supply device access.Specifically, the voltage signal of USB interface power pins is detected
Whether preset charge voltage threshold value is more than or equal to, to determine whether to charge.If the voltage signal of the power pins of USB interface is big
In or equal to charging voltage threshold value, it may be determined that the USB interface of terminal has power-supply device access；If the power pins of USB interface
Voltage signal is less than charging voltage threshold value, it may be determined that the USB interface non-transformer equipment access of terminal.
This step passes through the voltage signal of the power pins of the USB interface of detection terminal under equipment charge access module
Whether charging voltage threshold value is more than or equal to, to determine whether USB interface has accessed power-supply device.
S240, when the voltage for detecting power pins is less than charging voltage threshold value, return and continue whether detection terminal is sent out
Power transmission magnetic wave.
When it is determined that terminal USB interface non-transformer equipment accesses, it can return to and continue whether detection terminal sends electromagnetic wave.
According to the access module of testing result switching terminal and perform corresponding control.
This step may be such that terminal can also carry out the access detection of power-supply device in the case of USB interface short circuit, with
Solving USB interface short circuit in the prior art causes terminal to cannot be introduced into equipment charge access module under shutdown or open state
The problem of.
S250, when the voltage for detecting the power pins of USB interface of terminal is more than or equal to charging voltage threshold value, lead to
Cross USB interface and carry out equipment charge.
When the voltage of the power pins of the USB interface of terminal is more than or equal to charge power supply threshold value, illustrate that terminal USB connects
Mouthful there is power-supply device access, now under equipment charge access module, power-supply device is by terminal USB interface to terminal charge.
It should be noted that when detection terminal sends electromagnetic wave, it can determine that terminal is in open state, then terminal is in number
According to switch mode.Therefore also include after step S210：S260, under data exchange access module, when detecting that terminal USB connects
The identified pins of mouth are less than low level state, perform the data exchange with external equipment.When the identified pins of terminal USB interface are low
When low level state, illustrate to have detected that OTG equipment accesses at the USB interface of terminal, then now terminal can be to access
OTG equipment carries out OTG detections, identification and access, to carry out the data exchange with OTG equipment.
The present embodiment also provides the charging method of another terminal with data exchanging function, above-mentioned with the present embodiment
The difference of charging method is：Whether disconnected by the power supply of detection terminal, whether off-mode is in detection terminal.
It will be apparent that when terminal is in open state, terminal is typically all in each functional module to its inside
Power supply, its internal power supply are typically all what is connected, and the USB interface of corresponding terminal performs data exchange access module.
When terminal is in off-mode, the functional module of the terminal overwhelming majority all in closed mode, the power supply of terminal inner with
These functional modules are off, therefore the pass of terminal can be judged by the disconnection of the power supply of terminal inner
Machine state, corresponding control, which closes the data exchange access module of USB interface and forces terminal to switch to, performs equipment charge visit
Pattern is asked, to be charged.
The flow of the charging method is：Whether detection terminal power supply disconnects first, specifically, can be maintained eventually by detecting
Whether the power supply of necessary functional module is disconnected to be judged when holding work, if, it is determined that terminal is in shutdown shape
State；When detecting that terminal is in off-mode, the data exchange access module for USB interface of closing a terminal simultaneously switches to execution to set
Standby charging access module；Under equipment charge access module, whether the voltage of the power pins of the USB interface of detection terminal is more than
Or equal to charging voltage threshold value；When the voltage for detecting power pins is more than or equal to charging voltage threshold value, pass through USB interface
Carry out equipment charge.
If it should be noted that when detecting that the power supply of terminal is not turned off, it is determined that terminal is in open state, terminal
Perform data exchange access module.When the identified pins for detecting terminal USB interface are in low level state, it may be determined that USB
Interface has external OTG equipment to access, then terminal can carry out data exchange with external OTG equipment.
The charging method for the terminal with data exchanging function that the present embodiment provides, when detecting that terminal do not send electricity
Magnetic wave or when cutting off the electricity supply, terminal is in off-mode, and the data exchange access module that USB interface is closed in control simultaneously switches to
Equipment charge access module is performed, and when the voltage for detecting power pins is more than or equal to default charging voltage threshold value,
Control terminal is charged.Whether detection terminal is in judgement of the off-mode as switching terminal access module by the present embodiment
Condition, the access module switching to the USB interface of terminal is not only realized, also solve the USB interface of terminal in the prior art
Identified pins short circuit caused by terminal even if can not also charge in the power-offstate the problem of.
Embodiment three
Fig. 4 is a kind of structural representation for terminal charging device with data exchanging function that the embodiment of the present invention three provides
Figure.The device can perform filling for the terminal with OTG functions described in above-described embodiment by the way of software and/or hardware
Method for electrically, device configuration perform in the terminal.
A kind of charging device for terminal with data exchanging function that the present embodiment three provides, including：The SOT state of termination is examined
Survey module 310 and access module handover module 320.
Wherein, SOT state of termination detection module 310 is used to detect whether the terminal is in off-mode；Access module switches
Module 320 is used for when detecting that the terminal is in off-mode, closes the general-purpose serial bus USB interface of the terminal
Data exchange access module simultaneously switches to execution equipment charge access module.
Optionally, SOT state of termination detection module 310 includes：Electromagnetic Wave Detection unit 311 or power detecting unit 312.
Wherein, Electromagnetic Wave Detection unit 311 is used to detect whether the terminal sends electromagnetic wave, if not, it is determined that described
Terminal is in off-mode；Or whether power detecting unit 312 is used to detecting the power supply of the terminal and disconnects, if, it is determined that
The terminal is in off-mode.
Optionally, access module handover module 320 closes the tool of the data exchange access module of the USB interface of the terminal
Body implementation procedure is：The enable signal transmitted to the data in terminal and exchange identification circuit is disconnected, is handed over closing the data
Change access module.
Alternatively, the charging device also includes：Data pattern execution module 330, for when SOT state of termination detection module
310 detect that the terminal is in after open state, under the data exchange access module, when detecting that the USB connects
The identified pins of mouth are in low level state, then perform the data exchange with external equipment.
Alternatively, the charging device also includes：Power pins detection module 340 and charge mode execution module 350.
Wherein, power pins detection module 340 is used for when the access module handover module 320 closes the terminal USB
The data exchange access module of interface and switch to perform equipment charge access module after, in the equipment charge access module
Under, whether the voltage for detecting the power pins of the USB interface of the terminal is more than or equal to charging voltage threshold value；Charge mode is held
Row module 350 is used for when the voltage for detecting the power pins is more than or equal to the charging voltage threshold value, by described
USB interface carries out equipment charge.
A kind of charging device for terminal with data exchanging function that the present embodiment three provides, is detected by the SOT state of termination
Whether module detection terminal is in off-mode, and when detecting that terminal is in off-mode, access module handover module is closed
The data exchange access modules of the USB interface of terminal simultaneously switch to execution equipment charge access module, to control terminal to be filled
Electricity.Whether detection terminal is in off-mode as the Rule of judgment of switching terminal access module by the present embodiment, is not only realized
The access module of the USB interface of terminal is switched, also solves the identified pins short circuit of the USB interface of terminal in the prior art
Caused by terminal the problem of can not charging.
Pay attention to, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although being carried out by above example to the present invention
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
Other more equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (6)
- A kind of 1. charging method of the terminal with data exchanging function, it is characterised in that including：Whether detection terminal sends electromagnetic wave or whether power supply disconnects, and the basis for estimation of charged state is forced into as terminal；When detecting that the terminal does not send electromagnetic wave or power supply disconnection, disconnection is transmitted to the data in terminal to exchange and identified The enable signal of circuit, to close data exchange access module, and switch to and perform equipment charge access module.
- 2. charging method according to claim 1, it is characterised in that when detecting that the terminal sends electromagnetic wave or power supply After not disconnecting, in addition to：Under the data exchange access module, when the identified pins for detecting USB interface are in low level state, then perform with The data exchange of external equipment.
- 3. charging method according to claim 1, it is characterised in that when detecting that the terminal do not send electromagnetic wave or electricity When source disconnects, the enable signal transmitted to the data in terminal and exchange identification circuit is disconnected, mould is accessed to close data exchange Formula, and switch to perform equipment charge access module after, in addition to：Under the equipment charge access module, detect the power pins of the USB interface of the terminal voltage whether be more than or Equal to charging voltage threshold value；When the voltage for detecting the power pins is more than or equal to the charging voltage threshold value, entered by the USB interface Row equipment charge.
- A kind of 4. charging device of the terminal with data exchanging function, it is characterised in that including：SOT state of termination detection module, whether send electromagnetic wave for detection terminal or whether power supply disconnect, as terminal force into Enter the basis for estimation of charged state；Access module handover module, for when detecting that the terminal does not send electromagnetic wave or power supply and disconnected, disconnection transmit to The data in terminal exchanges the enable signal of identification circuit, to close data exchange access module, and switches to execution equipment Charge access module.
- 5. charging device according to claim 4, it is characterised in that also include：Data pattern execution module, for after detecting that the terminal sends electromagnetic wave or power supply does not disconnect, in the number According under switched access pattern, when the identified pins for detecting USB interface are in low level state, then the number with external equipment is performed According to exchange.
- 6. charging device according to claim 4, it is characterised in that also include：Power pins detection module, for when detecting that the terminal does not send electromagnetic wave or power supply and disconnected, disconnection transmit to The data in terminal exchanges the enable signal of identification circuit, to close data exchange access module, and switches to execution equipment Charge after access module, under the equipment charge access module, detect the electricity of the power pins of the USB interface of the terminal Whether pressure is more than or equal to charging voltage threshold value；Charge mode execution module, for being more than or equal to the charging voltage threshold value when the voltage for detecting the power pins When, equipment charge is carried out by the USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510532478.3A CN105071488B (en) | 2015-08-25 | 2015-08-25 | A kind of charging method and device of the terminal with data exchanging function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510532478.3A CN105071488B (en) | 2015-08-25 | 2015-08-25 | A kind of charging method and device of the terminal with data exchanging function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105071488A CN105071488A (en) | 2015-11-18 |
| CN105071488B true CN105071488B (en) | 2017-11-21 |
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| CN201510532478.3A Expired - Fee Related CN105071488B (en) | 2015-08-25 | 2015-08-25 | A kind of charging method and device of the terminal with data exchanging function |
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| CN106684967B (en) * | 2016-11-29 | 2019-07-26 | 维沃移动通信有限公司 | A kind of charging method and mobile terminal of mobile terminal |
| CN110442539B (en) * | 2019-06-17 | 2021-08-31 | 荣耀终端有限公司 | Mobile phone OTG switching method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TW535308B (en) * | 2000-05-23 | 2003-06-01 | Canon Kk | Detecting method for detecting internal state of a rechargeable battery, detecting device for practicing said detecting method, and instrument provided with said |
| CN203312846U (en) * | 2013-05-16 | 2013-11-27 | 方洪福 | A multifunctional mobile power supply |
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
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Granted publication date: 20171121 |